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Unformatted text preview: 2007-10-25•Read chapter 5, pages 158-203Sensation and Perception: Using Vision to Explore the Mystery of Sensation and PerceptionThe Functioning of the Senses•Understanding the steps that link the stimulus to our conscious experience•Sensory coding: what are the realms of the sensory system?oClassic 5: vision, hearing, touch, taste, smelloAlso:KinesthesisVestibular sensesSkin senses: pressure, cold, warmth, pain•Features in Common:oAll perform ‘transduction’Translating physical stimuli (e.g. sound waves) into an action potential in a neuronoCoding Aspects:Psychological intensitySensory qualityoImportant to our experience: the pattern of neural firings that result from the stimulation of those neuronsVision: The Basic Sensory Processes•Of all senses, vision represented by the largest area of the cortex•Aspects of vision:oStructures of vision and how they workoNature of transduction processoNature of coding processStimulus to the structures: Light•Light measured in waves (like sound)•Amplitude of wave: brightnesss•Frequency: expressed by the length of the wave•Usually expressed in wavelength (sound usually expressed in frequency)The Visible light Spectrum•Perceive a small part of electromagnetic (EM) spectrumoLight waves measured in nanometers (billionths of a meter)From 700nm to 400nm•Bees can see things past gamma rays and rattlesnakes can see things past AC circuits•Wavelengths we can see comprise the visible spectrum: 400 – 700 nanometreso400nm=blueo700nm=red...
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This note was uploaded on 04/04/2009 for the course PSYCH 1000 taught by Professor Atkinson during the Spring '09 term at UWO.
- Spring '09